LDEV-1912 set session timeout programmatically according to lams' UserInactiveTimeout value via a servlet listener rather than hard coding to 120 mins (in some webapps, no session timeout was specified at all).
Tool deployment utility has been changed to update the context path and class path when the tool is deployed. Conf versions of web-settings and manifest files modified to suit and the main tool context application file moved so that only the tool's have a context file classpath of /org/lamsfoundation/lams/tool.